參數(shù)資料
型號(hào): MAX14523BATA+T
廠商: Maxim Integrated
文件頁(yè)數(shù): 1/11頁(yè)
文件大?。?/td> 0K
描述: IC CURRENT LIMIT SWITCH 8-DFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
功能: 電流開(kāi)關(guān)
精確度: ±10%
輸入電壓: 1.7 V ~ 5.5 V
電流 - 輸出: 可調(diào)
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-WDFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 8-TDFN-EP(3x3)
包裝: 帶卷 (TR)
General Description
The MAX14523A/MAX14523AL/MAX14523B/MAX14523C
programmable current-limit switches feature internal
current limiting to prevent damage to host devices due
to faulty load conditions. These current-limit switches
feature a low 70m
Ω on-resistance and operate from a
+1.7V to +5.5V input voltage range. The current limit is
adjustable from 250mA to 1.5A, making these devices
ideal for SDIO (secure digital input/output) and other
load-switching applications.
Each device in the family handles an overcurrent event
differently depending on the option selected. The
MAX14523A/MAX14523AL go into an autoretry mode,
the MAX14523B latches off the switch, and the
MAX14523C features a continuous current-limit mode.
Additional safety features include thermal shutdown to
prevent overheating and reverse-current blocking to
prevent current from being driven back into the source.
The MAX14523A/MAX14523AL/MAX14523B/MAX14523C
are available in a tiny 8-pin, 3mm x 3mm, TDFN pack-
age and operate over the -40°C to +125°C automotive
temperature range.
Applications
SDIO Ports
USB Ports
Notebook VGA Ports
GPS
Cell Phones
MP3 Players
UTCA/ATCA Platforms
Features
Accurate (±10%) Overload Current Limit
Adjustable Current-Limit Threshold
Low-Dropout Voltage (70mV at 1A Load Current)
Short-Circuit Protection
Thermal-Shutdown Protection
Reverse-Current Protection
170A (typ) Supply Current
Shutdown Reverse Current, 0.6A (max)
+1.7V to +5.5V Supply Voltage Range
Tiny 8-Pin, 3mm x 3mm, TDFN Package
MAX14523A/MAX14523AL/MAX14523B/MAX14523C
250mA to 1.5A, Adjustable
Current-Limit Switches
________________________________________________________________
Maxim Integrated Products
1
Ordering Information/Selector Guide
MAX14523A
MAX14523AL
MAX14523B
MAX14523C
1
μF
RSETI
10k
Ω
BIAS
VOLTAGE
LOAD
CHARGE
PUMP
CONTROL
LOGIC
POWER
SUPPLY
μP
CURRENT
REFERENCE
GND
N.C.
1
μF
OUT
IN
FLAG
ON(ON)*
VPULLUP
*ON FOR THE MAX14523AL ONLY.
Typical Operating Circuit
19-4814; Rev 1; 1/11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
PART
PIN-PACKAGE
TOP MARK
ON POLARTIY
OVERCURRENT RESPONSE
MAX14523AATA+
8 TDFN-EP*
BLO
Active-High
Autoretry
MAX14523ALATA+**
8 TDFN-EP*
BLP
Active-Low
Autoretry
MAX14523BATA+
8 TDFN-EP*
BLQ
Active-High
Latch-Off
MAX14523BATA/V+T
8 TDFN-EP*
BLQ
Active-High
Latch-Off
MAX14523CATA+
8 TDFN-EP*
BLS
Active-High
Continuous
Pin Configuration appears at end of data sheet.
Note: All devices are specified over the -40°C to +125°C operating temperature range.
+
Denotes a lead(Pb)-free package/RoHs-compliant package.
/V denotes an automotive qualified part.
*
EP = Exposed pad.
**
Future product—contact factory for availability.
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